code: def test_create_cuda():
      gate = Top2Gate(4, 8).cuda()
  
file_path: fairscale/tests/nn/moe/test_top2gating.py
imports: import pytest
  import torch
  from fairscale.nn import Top2Gate
  from fairscale.nn.moe.top2gate import top2gating
label_desc: Use image node_id 2 for calling a global function with example usage: test_create_cuda() without return types